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Again, for some odd reason, people...

Apr2211 05:26 AM
ZapperZ

1 
47,808 
What is the difference between Simple Harmonic Motion and Harmonic Motion ?
and How do we define the motion of a...

Jun608 03:46 AM
linuxpie

4 
1,121 
I want to create a little board with 20 LEDs. My only problem is wiring them, I want to make a parallel circuit. I was...

Jun608 12:16 AM
noagname

0 
1,178 
Hi
I have a problem I'm trying to figure out, but no idea where to start. Essentially I am trying to calculate the...

Jun508 12:45 PM
RTW69

4 
2,066 
Would a harmonic of the Larmor frequency have any effect on proton precession?

Jun508 12:29 PM
rj_duff

2 
1,575 
Hi,
When you have interference in thin films, why does the film has to be thin? Why doesn't it work with "thick"...

Jun408 07:45 AM
yoran

2 
3,270 
I have a couple of questions about single slit diffraction. It's not a homework exercise  just a conceptual problem....

Jun408 07:40 AM
Andy Resnick

1 
2,483 
Hello
I'm a computer science student trying to write a software in C for calculating the radar cross section of...

Jun408 04:31 AM
broli00

0 
1,720 
Hello!
I have a problem  a nonphysics student has asked: "Why do I see my face upside down on one side of a...

Jun408 02:32 AM
ws0619

5 
6,152 
Can two magnets produce a magnetic field strong than the simple vector sum of their individual fields when near each...

Jun408 01:37 AM
ws0619

1 
2,772 
Unfortunately, magnetic fields are by their nature invisible, but scientists from NASA’s Space Sciences Laboratory...

Jun308 11:37 PM
SF

2 
1,556 
What limits the length of a snorkel?
Our chest muscles strenth?
If they are strong enough will we be able to swim...

Jun308 03:47 PM
tonyh

4 
1,462 
the idea is , if we have the magnetic field strength (H) and magnetic flux density (B) so we represent the 'hysteresis...

Jun308 12:07 PM
pam

1 
2,037 
If I describe a system by a Lagrange's function
L=\frac{1}{2}\int...

Jun308 10:02 AM
jostpuur

4 
3,617 
First of all, sorry for my poor english
I am studying classical mechanics and have a problem with angular momentum. I...

Jun308 09:37 AM
tinytim

2 
918 
I found somewhere that the time needed for vibrations of the radiation corresponding to the transition between the...

Jun308 05:49 AM
SpaceExplorer

0 
1,106 
Hi,
In one part in my book they define the magnetic moment of a closed loop of current. They define it as...

Jun208 08:06 AM
yoran

7 
2,976 
To create a solenoid, conductive wire is coiled with n # of turns per unit length. To create a real solenoid can each...

Jun208 07:42 AM
benabean

2 
2,760 
Hi,
When you charge a capacitor in an RCcircuit, the charge q in the capacitor is given by
q(t)=\epsilon...

May3108 11:21 PM
pzlded

7 
2,846 
Point charges w/velocity have a magnetic field. How does an uncharged capacitor slow the point charges to zero...

May3108 05:10 PM
pzlded

3 
1,995 
I'm working on a simulation for ballistics, and I am in dire need of some help with elasticity. It is primarily to be...

May3108 06:39 AM
tuoni

0 
1,563 
Well hello there! :D
I'm doing a project on graphical simulation of a bullet hitting a glass plate, and I have some...

May3008 07:40 PM
zoltaaaan

2 
1,224 
Is there anyway of measuring the potential difference between 2 points on a electrical circuit other than using a...

May3008 07:32 PM
f95toli

7 
3,799 
I am wanting to accurately calculate the top speed of a car (using it's power, mass, drag, and friction). I started...

May3008 06:20 PM
rcgldr

3 
15,108 
Someone repeated the Cavendish experiment at about 0 K?
My question: the gravity force is costant when mass is near...

May3008 04:43 PM
D H

9 
2,016 
Hi Guys,
I've attached 2 pages from the book of landau "The Classical Theory of fields", I have a question about...

May3008 07:13 AM
orubi

2 
1,437 
Hi, i have visited the forum for an explanation in cuantum theories (curious) and now i need other help.
In my...

May3008 03:30 AM
pzlded

4 
1,268 
How much heat is absorbed in changing 2kg of ice at 5°C to steam at 110.0°C? The Specific heats of ice, liquid...

May2908 03:58 PM
russ_watters

1 
1,049 
I am trying to derive the formula for E.m.f across the ends of a rod rotating in a magnetic field when the field is...

May2908 02:43 PM
mukundpa

2 
3,862 
Hi, I've just gone through a derivation and would like some confirmation that my reasoning is correct:
Say the...

May2808 09:19 PM
jbunten

4 
35,407 
I have a vector v = a i +bxj
Now I want to find a.So I apply chain rule and differentiate dv/dx * dx/dt = bj * Vx =...

May2808 07:56 PM
jbunten

9 
1,442 
Could everyone tell me how to calculate YAG/Al2O3 crystal saturating vaporization pressure?
P=P*exp(delt(H)/RT),but...

May2708 08:01 PM
gggarnet

0 
1,192 
I started working on statistical physics for only a few days and it maybe quiet elemantary,
how can i write the...

May2708 02:12 PM
torehan

0 
1,789 
Hi. I understand that Zernike was a physicist and that he did some work in optics, and am also aware of the Zernike...

May2708 08:57 AM
Andy Resnick

1 
1,189 
If I use a narrow slit (e.g. two fingers) to view a distant streetlight, I can see an interference pattern parallel to...

May2708 08:54 AM
Andy Resnick

18 
3,024 
Can anyone tell me if Internal\ Energy + Pressure * Volume equals heat, total energy, energy in transit?
What if...

May2708 02:38 AM
jimRH9

8 
7,572 
Suppose we have a ball made of linear dielectric with permittivity \epsilon, with some initial homogenous polarization...

May2708 01:15 AM
Euclid

1 
1,648 
Hey all, I was wondering about a varied version of something.
I know that if you run a magnet up and down a tightly...

May2708 12:27 AM
thedeepblue

3 
5,362 
How do I work out the rate of heat transfer between different states of matter? Say for example I wanted to calculate...

May2608 10:23 PM
Mapes

3 
2,691 
My thinking must be faulty somewhere, but I can't work out whats gonig on...
The equation
Tds = du + pdv and
...

May2608 04:48 PM
Mapes

2 
1,587 
I was wondering how to do the math for a bullet hitting some body armor.
Would you just divide the original force...

May2608 01:23 PM
rockerdoctor

2 
1,381 